baber/WOPTO huggingface dataset:
Patent WO-2020133961-A1 (WO)
Title: 一种功能聚酯生产方法、生产系统及功能聚酯纤维
Inventor: LI XIN
IPC: C08G63/183
Filed: 2019-06-20
Abstract: 一种功能聚酯生产系统，属于高分子材料合成技术领域。所述功能聚酯生产系统包括聚酯主体生产系统和功能粉体浆料浓缩物制备系统，所述的聚酯主体生产系统包括依次连接的酯化系统、预缩聚系统和终缩聚系统，功能粉体浆料浓缩物制备系统包括与酯化系统或/和酯化系统、预缩聚系统之间部位连接的在线添加装置。在聚酯主生产系统中引入功能粉体浆料浓缩物制备系统，可连续制备具有低羟值、低压滤值的功能粉体浆料浓缩物，并将制备的功能粉体浆料浓缩物与聚酯低聚物均匀混合后进行缩聚反应，获得功能粉体高度均匀分散的功能聚酯。还涉及一种功能聚酯生产方法。
Patent WO-2020258131-A1 (WO)
Inventor: YAN ZHEN
IPC: C07C59/06
Filed: 2019-06-27
Abstract: Provided is a method for preparing glycolic acid which comprises oxidizing glycolaldehyde with molecular oxygen in the presence of a solvent and a supported catalyst. Said supported catalyst comprises (i) a noble metal selected from the group consisting of Pt, Pd, Ru and Rh, (ii) Bi and (iii) a support. Advantageously, the supported metallic catalyst is more active than the catalysts used in prior art. Furthermore, the catalyst is more stable at oxygen rich conditions.
Patent WO-2020011148-A1 (WO)
Title: Multi-chip module of radio frequency power amplifier
Inventor: ZHANG YONG
IPC: H03F3/24
Filed: 2019-07-09
Abstract: Disclosed by the present invention is a multi-chip module of a radio frequency power amplifier. An active transistor and a matching coupling circuit are integrated in a single packaging carrier. The matching coupling circuit is implemented by using an integrated passive device technique. The matching coupling circuit is used for impedance matching and signal coupling. One coupling output end of the matching coupling circuit is connected to a second pin of the packaging carrier and is used as an interface for an external circuit sampling coupling signal. A direct connection end input end of the matching coupling circuit is connected to an output end of the active transistor. The matching coupling circuit matches the optimal impedance of the active transistor to Z1. Output impedance Z1 of a direct connection output end of the matching coupling circuit is variable impedance. The direct connection output end of the matching coupling circuit is connected to an input end of a circulator. The input impedance of the circulator is Z0, and Z0 and Z1 are conjugate. The module has a small volume and is easy to package and integrate.
Patent WO-2020173039-A1 (WO)
Title: 一种磁芯收料装箱装置
Inventor: LIU YUN
IPC: B65D25/10
Filed: 2019-07-15
Abstract: 一种磁芯收料装箱装置，包括存放箱（1），存放箱（1）内腔的左侧和右侧均设置有支撑结构（2），支撑结构（2）的上方设置有放置板（3），放置板（3）的底部固定连接有放置盒（4），放置板（3）的顶部设置有夹持结构（5），存放箱（1）的正面设置有密封结构（6），存放箱（1）内腔的顶部固定连接有连接板（7），连接板（7）底部的两侧均开设有滑槽（8），滑槽（8）的内部滑动连接有滑块（9），滑槽（8）的内部设置有拉伸弹簧（10），拉伸弹簧（10）的两端分别与滑槽（8）的内壁和滑块（9）的表面焊接，滑块（9）的底部通过活动轴活动连接有活动杆（11），活动杆（11）远离滑块（9）的一端通过活动轴固定连接有压紧板（12）。
Patent WO-2021003757-A1 (WO)
Inventor: DONG XIAOFENG
IPC: G01S5/10
Filed: 2019-07-16
Abstract: 本发明公开了一种基于信号多径传播测量的室内定位方法及系统，其中，包括以下步骤：步骤S1、于室内的多个信源中确定可用信源以及所述可用信源坐标；步骤S2、获取移动终端到所述可用信源的距离；步骤S3、基于所述距离获取所述移动终端当前的坐标；步骤S4、所述移动终端基于所述坐标在电子地图上执行定位显示；步骤S5、基于所述可用信源以及所述移动终端的坐标执行信道环境指纹分析引擎的训练。
Patent WO-2021007833-A1 (WO)
Inventor: HUANG MIN
IPC: H04W72/08
Filed: 2019-07-18
Abstract: Methods, systems, and devices for wireless communications are described. A relay node may determine a channel status for each of a plurality of downlink beamforming directions between a parent node and the relay node based at least in part on a downlink beamforming direction between the relay node and a child node. The relay node may transmit a report to the parent node indicating at least a subset of the channel statuses and an indication that a respective downlink beamforming direction of the plurality of downlink beamforming directions corresponds to a respective channel status in the subset of the channel statuses. The relay node may receive a grant from the parent node indicating a first downlink beamforming direction. The relay node may monitor for a downlink transmission from the parent node based at least in part on the grant and the first downlink beamforming direction.
Patent WO-2021012162-A1 (WO)
Inventor: GUAN KUN
IPC: H03M7/30
Filed: 2019-07-22
Abstract: Disclosed are a method and apparatus for data compression in a storage system, a device, and a readable storage medium. The method relates to the technical field of storage. The method comprises: when storing a target data block, determining whether deletion of repeated data can be performed on the target data block; when the deletion of the repeated data cannot be performed on the target data block, obtaining similar fingerprint for the target data block; determining a merged data block group to which the target data block belongs according to the similar fingerprint; and on the basis of a reference block in the merged data block group, performing similar compression on the target data block. In this way, the reduction rate can be improved.
Patent WO-2021016826-A1 (WO)
Title: Separator pump
Inventor: SHU ZHAN
IPC: F04B43/04
Filed: 2019-07-29
Abstract: Provided is a separator pump, comprising a pump body (21), a pump cover (22), and a separator (1). A pump cover (22) is arranged on the pump body (21); the separator (1) is located between the pump body (21) and the pump cover (22); the separator (1) and the pump cover (22) together form a separator cavity (27); the separator cavity (27) is provided with a liquid inlet and a liquid outlet. The separator (1) comprises a separator body (11) and a first fastener (12); the first fastener (12) is fixedly connected to the middle of the separator body (11), and used for connection between the separator body (11) and the pump body (21); the first fastener (12) can drive the separator body (11) to deform so as to change the size of the separator cavity (27), causing the separator (1) to expel the liquid in the separator cavity (27) from the liquid outlet, or suck liquid from the liquid inlet. The first fastener (12) is used for achieving connection between the separator body (11) and the pump body (21); since the first fastener (12) is convenient for disassembly and installation, it is possible to remove the first fastener (12) from the pump body (21) to separate the separator (1) from the pump body (21), thereby enabling the separator (1) to be easily removed from the pump body (21); it can also be easily installed back to the pump body (21), and furthermore, the separator (1) can easily be replaced or repaired.
Patent WO-2020140436-A1 (WO)
Inventor: LEE LI-HWA
IPC: F16M13/02
Filed: 2019-08-12
Abstract: 一种摄影连接装置以及摄影云台，其中摄影连接装置包括底盘(1)，该底盘的上部设有自由旋转的一级旋转头(2)，以及安装在一级旋转头(2)两侧的拱形支架(3)，拱形支架(3)左侧肩部设有按键(4)，拱形支架(3)上部还设有二级旋转头(5)，在二级旋转头(5)上部设有云台基座(6)，云台基座(6)上部设有与摄影器材相连的摄影器材固定组件(7)，云台基座(6)上还设有水平仪(8)，还有用于控制拱形支架(3)前后转动的手把一(9)以及用于控制云台基座(6)左右转动的手把二(10)，摄影云台包括上述摄影连接装置，该摄影连接装置中的底盘(1)底部连接有三脚架。该装置可实现多自由度、多角度形态，操作可靠方便，收纳不占空间。
Patent WO-2020155622-A1 (WO)
Inventor: WANG MING
IPC: H04L9/32
Filed: 2019-08-30
Abstract: 本申请属于信息安全技术领域，涉及提高影像数据传输安全的方法、装置、系统及存储介质。该方法包括：从医学影像数据中选择任意长度的第一报文生成为影像数据摘要；通过数字授权私钥给所述影像数据摘要进行加密得到数字签名；通过随机密钥给所述医学影像数据进行加密后得到影像加密数据；通过影像数据公钥给所述随机密钥进行加密后得到加密密钥；将所述数字签名、所述数字证书、所述影像加密数据以及所述加密密钥发送至所述医学影像信息系统的云端。该方法有利于提高所述医学影像数据在远程传输过程中的安全性。
Patent WO-2020088333-A1 (WO)
Title: Silane-crosslinked polyethylene insulation material used for heating cable, preparation method therefor and application thereof
Inventor: ZHANG LIBEN
IPC: H01B3/44
Filed: 2019-10-24
Abstract: Disclosed in the present invention are a silane-crosslinked polyethylene insulation material used for a heating cable, a preparation method therefor and an application thereof; the insulation material is made by mixing a silane-grafted material and a crosslinking catalyst master batch; the raw materials of the silane-grafted material comprise a polyolefin resin, a silane crosslinking agent, a graft initiator, a first lubricant, and a first antioxidant; the raw materials of the crosslinking catalyst master batch comprise: a crosslinking catalyst, a second lubricant, and a second antioxidant; the polyolefin resin is composed of a first high-density polyethylene, a bimodal polyethylene, and polypropylene; the raw materials of the crosslinking catalyst master batch further comprise a second high-density polyethylene and a linear low-density polyethylene; the preparation method comprises: respectively preparing the silane-grafted material and the crosslinking catalyst master batch, and then packaging according to a ratio; and an application thereof in the production of heating cables. The present invention may be used for a long period of time at 125°C, maintains excellent physical and mechanical properties, is safe and environmentally friendly, and is low-cost.
Patent WO-2020168743-A1 (WO)
Inventor: DU XINXIN
IPC: B60W40/105
Filed: 2019-11-06
Abstract: A vehicle speed control method and apparatus. The method comprises: when a vehicle body is in a normal state, determining a first vehicle speed of the vehicle body based on road safety information (S11); acquiring a driving segment of the vehicle body, and determining a pose variation amount of the vehicle body within the driving segment (S12); determining a tangential acceleration of the vehicle body within the driving segment according to a correlation between the pose variation amount of the vehicle body and the tangential acceleration of the vehicle body (S13); when the tangential acceleration of the vehicle body reaches a preset maximum tangential acceleration, determining a second vehicle speed of the vehicle body (S14); and determining whether the second vehicle speed is less than the first vehicle speed, and if the second vehicle speed is less than the first vehicle speed, determining the second vehicle speed to be a target vehicle speed (S15). On the premise of ensuring safe driving, a target speed that meets the comfort requirement of a passenger is selected while comprehensively taking the factor of the passenger's comfort into consideration, thereby facilitating the actual application of an unmanned vehicle.
Patent WO-2021092770-A1 (WO)
Title: Functional glass for high visible light transmission, near-infrared absorption and ultraviolet blocking
Inventor: HE HAIBO
IPC: C03C4/08
Filed: 2019-11-12
Abstract: A functional glass for high visible light transmission, near-infrared absorption and ultraviolet blocking, comprising the following components in parts by weight: SiO2: 55-75 parts; Na2O: 8-20 parts; CaO: 3-12 parts; Al2O 3: 0.5-10 parts; MgO: 0.1-2 parts; K2O: 0.02-8 parts; SO3: 0.01-0.4 parts; Fe2O3: 0.1-1 part; B2O3: 0.1-5 parts; TiO2: 0.1-6%; CuO: 0.001-0.06 parts; Sb2O3: 0.1-2 parts; Cl: 0.001-0.5 parts; and CeO2: 0.5-6 parts. By means of the synergy of said components and the weight ratio thereof, the glass can have the properties of high visible light transmission, near-infrared absorption and ultraviolet blocking.
Patent WO-2020181825-A1 (WO)
Inventor: CHEN HUI
IPC: C12N15/00
Filed: 2019-11-19
Abstract: Disclosed is a nucleic acid extraction apparatus. The nucleic acid extraction apparatus comprises a workbench having a table top, and further comprises a sliding seat, a sample rack, a reagent strip rack, a pipetting table, a piston assembly and a suction assembly. The nucleic acid extraction apparatus comprises the sliding seat and the pipetting table, the sample rack and the reagent strip rack are arranged on the sliding seat, the piston assembly and the suction assembly are respectively arranged on the pipetting table, the sample rack is provided with sample holes, the reagent strip rack is provided with accommodation slots, the number of accommodation slots corresponds to that of the sample holes on a one-to-one basis, and when reagent strips are respectively accommodated in the accommodation slots, a first suction head hole, second suction head holes and various reagent holes in each reagent strip respectively correspond to the corresponding sample holes, such that the loading of a suction head assembly and suction heads and operations such as suction, injection and mixing of a sample and various reagents can be realized by means of a vertical movement, relative to the sliding seat, of the pipetting table and a horizontal movement, relative to the pipetting table, of the sliding seat, thereby realizing the automated operation of nucleic acid extraction.
Patent WO-2021103013-A1 (WO)
Inventor: LI PU
IPC: H04N19/70
Filed: 2019-11-29
Abstract: Provided by embodiments of the present invention are methods for data encoding and data decoding, a device, and a storage medium, the encoding method comprising: acquiring point cloud data to be encoded; encoding the point cloud data to obtain code stream data, the code stream data comprising point cloud header information; determining a designated position in the point cloud header information according to a syntax element in the point cloud header information; and inserting a designated flag bit at the designated position of the point cloud header information so as to obtain pseudo code removal stream data. By means of the foregoing, pseudo start codes when encoding may be avoided, and carrying out a pseudo start code removal operation when decoding can be avoided, thus improving encoding/decoding efficiency.
Patent WO-2021012567-A1 (WO)
Inventor: XU ZUZHAO
IPC: H01L27/12
Filed: 2019-12-03
Abstract: La présente invention concerne un substrat matriciel et un panneau d'affichage. Le substrat matriciel comprend un substrat, une couche active (201), une première couche métallique (301), une seconde couche métallique (401), et une couche de source/drain (501) qui sont empilées ; la couche de source/drain (501) forme une source (281) et un drain (282), et est reliée à un premier élément de raccordement (252) formé par la seconde couche métallique (401) au moyen d'un premier trou d'interconnexion (110) ; le premier élément de liaison (252) est relié à une région dopée (211) de la couche active (201) au moyen d'un second trou d'interconnexion (120) ; l'ouverture du premier trou d'interconnexion (110) est supérieure à celle du second trou d'interconnexion (120). Par conséquent, une mauvaise connexion entre la source (281) et le drain (282) et la couche active (201) est atténuée.
Patent WO-2021109019-A1 (WO)
Title: Aliment pour lapin bénéfique pour la digestion et l'absorption
Inventor: MAO LEI
IPC: A23K50/50
Filed: 2019-12-04
Abstract: L'invention concerne un aliment pour lapereau bénéfique pour la digestion et l'absorption constitué des matières premières suivantes en parties en poids : 5 à 30 parties de farine raffinée, 1 à 10 parties de chapelure, 2 à 8 parties de poudre de patate douce, 5 à 10 parties de poudre de carotte, 5 à 15 parties de poudre de protéine, 2 à 8 parties de poudre d'arête de poisson, 4 à 9 parties de papaye, 1 à 8 parties de poudre de tremelle, 1 à 5 parties de poudre de jujube, 3 à 5 parties de poudre de feuille de mûrier, 6 à 10 parties de Lycium barbarum, 1 à 4 parties de poudre d'aiguilles de pin, 15 à 30 parties d'épinard, 5 à 15 parties de citrouille, 0,5 à 1 partie de lactate de calcium, 0,5 à 2 parties de gluconate de zinc, 0,5 à 3 parties de poudre d'aubépine, 0,5 à 1 partie de sel de table, 0,1 à 0,3 partie de montmorillonite et 0,1 à 2 parties de probiotiques.
Patent WO-2020147461-A1 (WO)
Inventor: QIAN FENG
IPC: G06N3/00
Filed: 2019-12-10
Abstract: 一种基于数据驱动的溶剂脱沥青装置建模及优化方法。所述基于数据驱动的溶剂脱沥青装置建模方法包括：(1)现场数据的预处理，所述现场数据包括溶剂脱沥青装置的生产操作数据、原料和产品性质分析数据；(2)筛选特征变量，所述筛选根据工艺原理和过程进行；(3)对特征变量采用主成分分析法(PCA)进行降维；和(4)采用反向传播(BP)神经网络就降维后的数据集进行建模，分别建立脱沥青油(DAO)的收率模型和脱硫脱残炭模型。所述优化方法包括利用构建得到的基于数据驱动的溶剂脱沥青装置模型优化溶剂脱沥青装置操作条件的步骤。
Patent WO-2021093138-A1 (WO)
Title: Methods and devices for enhancement on sounding reference signal (srs) transmission signaling
Inventor: JIANG CHUANGXIN
IPC: H04W72/04
Filed: 2020-01-03
Abstract: Method, systems and devices for wireless communication. The method includes performing sounding reference signal (SRS) transmission between a user equipment and a network base station by obtaining a first transmit power of a first SRS resource and determining a second transmit power of a second SRS resource based on the first transmit power of the first SRS resource of a same SRS resource set; transmitting N sets of parameters corresponding to a SRS resource set between the network base station and the user equipment; or transmitting M sections of frequency sounding at a symbol between the user equipment and the network base station, wherein each section of the M sections comprises consecutive physical resource blocks (PRBs), M being a positive integer.
Patent WO-2021134805-A1 (WO)
Inventor: HUANG ROY
IPC: G02B6/38
Filed: 2020-01-06
Abstract: 一种Ttap型防水连接器组件，涉及防水连接器技术领域，包括SC连接器(100)，SC连接器(100)外侧套设有防水内壳(200)，防水内壳(200)的外侧套设有防水外壳(300)，SC连接器(100)的前端设置有与防水外壳(300)螺纹连接的端帽(400) ，SC连接器(100)的后端设置有与防水外壳(300)螺纹连接的连接件(500)，连接件(500)上设置有抵在防水外壳(300)端部的防水圈(510)，连接件(500)远离防水内壳(200)的一端通过螺纹连接有防水尾帽(600)，防水尾帽(600)固定设置在光缆外皮上。该Ttap型防水连接器组件，可工厂预制在连接头上，也可现场组装，操作方便，施工简单，防水性能可靠。
Patent WO-2021159324-A1 (WO)
Title: Channel state information reporting
Inventor: SUN HAITONG
IPC: H04W72/04
Filed: 2020-02-12
Abstract: This disclosure relates to techniques for a wireless device to perform channel state information reporting. The wireless device may receive channel state information reporting configuration information. The channel state information reporting configuration information may include an indication to use a wideband precoding matrix indicator format for 3GPP release 16 type II channel state information reporting. The wireless device may perform channel state information reporting using a different reporting configuration than 3GPP release 16 type II channel state information reporting using a wideband precoding matrix indicator format based at least in part on the channel state information reporting configuration information. The wireless device may also or alternatively perform 3GPP type I channel state information reporting using a unified spatial basis selection framework for rank indicators of 3 and 4 for any number of channel state information reference signal ports.
Patent WO-2021163934-A1 (WO)
Title: Communication processing method and apparatus, and computer storage medium
Inventor: JIANG XIAOWEI
IPC: H04W64/00
Filed: 2020-02-19
Abstract: Disclosed in the embodiments of the present disclosure are a communication processing method and apparatus, and a computer storage medium. The method applied to a first base station comprises: upon receiving location assistance information of a radio resource control (RRC) inactive user equipment (UE) sent by a location management function (LMF), sending a first paging message in a radio access network (RAN) notification area (RNA) of the UE; and sending the location assistance information to the UE in a cell that receives a random access request returned on the basis of the first paging message.
Patent WO-2021120382-A1 (WO)
Inventor: YU LONGJIE
IPC: H01Q21/30
Filed: 2020-02-20
Abstract: La présente invention concerne un ensemble antenne et un terminal mobile. L'ensemble antenne comprend un corps de cadre métallique, et au moins un point de rupture est disposé dans le corps de cadre métallique pour diviser le corps de cadre métallique en une pluralité de bordures ; chaque bordure est intégrée à une pluralité d'antennes ; et les antennes intégrées au corps de cadre métallique comprennent des antennes MIMO 2 x 2 basse fréquence, des antennes MIMO 4 x 4 moyenne et haute fréquence, des antennes MIMO 4 x 4 dans la bande Sub-6G, des antennes MIMO 2 x 2 WiFi et des antennes GPS à double fréquence.
Patent WO-2020248621-A1 (WO)
Inventor: LEE ROBERT
IPC: A47G1/00
Filed: 2020-02-25
Abstract: Disclosed are a safe and unbreakable PET film mirror and a preparation method therefor, comprising: a PET mirror surface, which comprises: a PET base film layer, a metal plating layer and an anti-oxidation coating sequentially disposed at the back side of the PET base film layer, a scratch-resistant resin layer being provided at the front side of the PET base film layer; and an aluminum alloy mirror frame, which is disposed under the PET mirror surface, an adhesive layer being coated on one side of the aluminum alloy mirror frame in contact with the PET mirror surface. The mirror according to the present application is lightweight, unbreakable and highly safe. Even if damaged, the mirror will never cause personal injury. In addition, a production method according to the present application has the advantages of a simple process, small floor space and low energy consumption, and will not pollute or damage the environment.
Patent WO-2020173435-A1 (WO)
Inventor: WANG CHENGQIANG
IPC: B60L5/20
Filed: 2020-02-25
Abstract: A multiple-unit train and a pantograph platform structure thereof. The pantograph platform structure comprises: a vehicle structure having a recessed flat-roof structure (3); a high-voltage box (4) disposed at the flat-top structure (3) and used to accommodate a high-voltage electrical apparatus, wherein the profile of a top surface of the high-voltage box (4) disposed at the flat-top structure (3) is aligned with the profile of an outer top surface of the vehicle structure; and a pantograph airflow-guiding shroud (1) disposed at the flat-top structure (3) and having a clearance portion for mounting the pantograph (2), wherein the profile of a top surface of the pantograph airflow-guiding shroud (1) disposed at the flat-top structure (3) is aligned with the profile of the outer top surface of the vehicle structure. The pantograph platform structure facilitates installation and maintenance of high-voltage boxes, reduces aerodynamic resistance and aerodynamic noise, and improves aerodynamic performance.
Patent WO-2020224338-A1 (WO)
Inventor: JIANG MINGSHENG
IPC: B65G47/248
Filed: 2020-03-19
Abstract: The present invention relates to a colored steel sheet turning and combining apparatus, comprising a frame, conveying rollers, a lifting apparatus, and a suction cup set; the lifting apparatus is provided with a suction cup arm, and the rear end of the suction cup arm moves upward and downward under the drive of the lifting apparatus; the suction cup set comprises a rotating frame and a plurality of suction cups arranged on the rotating frame; the rotating frame is arranged at the rear end of the suction cup arm and is driven by a rotary power apparatus to rotate in the vertical plane parallel to the conveying rollers, causing the entire suction cup set to be turned over such that the suction surfaces of the suction cups face upward or downward. The present invention achieves the process of automatically turning and combining colored steel sheets, replacing manual operation, improving operating efficiency, reducing operating costs, and reducing human error. In addition, when on a production line, the apparatus can achieve automated turning and combining, has a simple and compact structure, and is stable in operation and low in cost. At the same time, all colored steel sheets come from one set of forming mechanisms, reducing combining problems caused by errors and increasing accuracy.
Patent WO-2020187296-A1 (WO)
Title: 流映射方法、RB的QoS参数的设置方法及传输节点
Inventor: SUN JUNSHUAI
IPC: H04L12/851
Filed: 2020-03-19
Abstract: 本公开提供一种流映射方法、RB的QoS参数的设置方法及传输节点，该方法包括：以第一数据流的服务质量QoS流标识为索引获取所述第一数据流的第一QoS参数；所述第一QoS参数包括无线承载RB信息条款，RB信息条款用于标识RB；根据所述RB信息条款，将所述第一数据流映射到能够承载所述第一数据流的目标RB上并发送。
Patent WO-2020253317-A1 (WO)
Inventor: YUAN MENGJIE
IPC: B25J18/00
Filed: 2020-03-31
Abstract: L'invention concerne un bras mécanique, comprenant : un premier ensemble rotatif (1) ; un second ensemble rotatif (2) relié au premier ensemble rotatif (1), le premier ensemble rotatif (1) étant utilisé pour amener le second ensemble rotatif (2) à tourner autour de l'axe de rotation du premier ensemble rotatif (1) ; un bras de pression (4) relié au second ensemble rotatif (2), le second ensemble rotatif (2) étant utilisé pour amener le bras de pression (4) à tourner autour de l'axe de rotation du second ensemble rotatif (2) ; et un module linéaire (3) relié au premier ensemble rotatif (1) et amenant le premier ensemble rotatif (1) à se déplacer dans la direction de la longueur du module linéaire (3). L'invention concerne également un robot comprenant le bras mécanique. Le bras mécanique et le robot ont un espace de mouvement suffisamment large et un degré de liberté et une précision suffisamment élevés et occupent une petite quantité d'espace, sont légers et de faible coût.